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MAX16823EVKIT Datasheet(Scheda tecnica) 1 Page - Maxim Integrated Products

Numero della parte MAX16823EVKIT
Dettagli  MAX16823 Evaluation Kit
Download  6 Pages
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Produttore  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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General Description
The MAX16823 evaluation kit (EV kit) circuit demon-
strates a current-controlled LED driver that uses the
MAX16823 current regulator. The EV kit is configured to
supply 50mA to each of the three output channels and
the circuit features 3 series LEDs per channel. Output
pads are provided at two channels to evaluate external
LEDs rated up to 70mA. Additional output pads are
available to evaluate LEDs rated up to 550mA (typ) on
one of the channels. The MAX16823 EV kit requires a
6.5V to 16V, 1A power supply for proper operation.
However, the MAX16823 IC can accept input voltages
from 5.5V to 40V.
The MAX16823 EV kit features pulse-width modulation
(PWM) dimming-control inputs and an open LED detec-
tion output. The MAX16823 EV kit is a fully assembled
and tested printed circuit board (PCB).
Features
o 6.5V to 16V Supply Voltage Range
o Open LED Detection Output
o On-Board or External LED Connections
o 50mA Load Current
o Configurable 550mA Output Current at OUT_3
o Separate PWM Dimming Control for Each Channel
o Fully Assembled and Tested
MAX16823 Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
19-0772; Rev 0; 3/07
Component List
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
Component Suppliers
+
Denotes a lead-free and RoHS-compliant EV kit.
*
This limited temperature range applies to the EV kit PCB only.
The MAX16823 IC temperature range is -40°C to +125°C.
EP = Exposed paddle.
PART
TEMP RANGE
IC PACKAGE
MAX16823EVKIT+
0°C to +70°C*
16 TQFN-EP
SUPPLIER
PHONE
WEBSITE
Fairchild
Semiconductor
888-522-5372
www.fairchildsemi.com
IRC/TT Electronics
361-992-7900
www.irctt.com
Murata Mfg. Co., Ltd.
770-436-1300
www.murata.com
OSRAM Opto
Semiconductors
888-446-7726
www.osram-os.com
Note: Indicate that you are using the MAX16823 when contact-
ing these component suppliers.
Quick Start
Recommended Equipment
• 16V adjustable, 1A power supply
• Two digital voltmeters
Procedure
The MAX16823 EV kit is fully assembled and tested.
Follow the steps below to verify operation. Caution: Do
not turn on the power supply until all connections
are completed.
1) Connect the power supply’s positive terminal to the
IN PCB pad on the EV kit. Connect the power sup-
ply’s ground terminal to the GND PC pad located
directly above the IN pad.
DESIGNATION
QTY
DESCRIPTION
C1
0
Not installed, ceramic capacitor (1206)
C2, C3
2
0.1µF ±10%, 50V X7R ceramic
capacitors (0603)
Murata GRM188R71H104K
C4
1
0.015µF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H153K
D1–D9
9
Red LEDs (4-PLCC)
OSRAM LR E6SF-AABB-1-1
JU1–JU4
4
3-pin headers
JU5, JU6, JU7
3
2-pin headers
Q1
1
80V, 3A npn transistor (D-PAK)
Fairchild Semiconductor MJD31CTF
R1
0
Not installed, resistor (0805)
R2, R3, R4
3
4.02
Ω ±1% resistors (0805)
R5
1
0.4
Ω ±1%, 500mW sense resistor (1206)
IRC/TT Electronics LRC-LRF-
1206LF-01-R400-F
R6
1
10k
Ω ±5% resistor (0603)
R7
1
0
Ω ±5% resistor (1206)
TP1
1
PC mini red test point
U1
1
MAX16823ATE+ (16-pin TQFN,
5mm x 5mm x 0.8mm)
7
Shunts (JU1–JU7)
1
PCB: MAX16823 Evaluation Kit+




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